======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '161'
                                          'artist'  'the lion'
                                     'text_people'  ''
                                         'release'  'history of carnival'
                                           'title'  'netty netty'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['calypso', 'caribbean', 'all', 'trinidad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'loc-style-calypso'
                                             'bpm'  '89.414'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

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'PRIV:WM/WMCollectionGroupID:òf\x98-ÅB\x1eO\x8b\x94\x11\x04o\x88+]'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xf2f\x98-\xc5B\x1eO\x8b\x94\x11\x04o\x88+]')
'PRIV:WM/WMCollectionID:òf\x98-ÅB\x1eO\x8b\x94\x11\x04o\x88+]'  PRIV(owner='WM/WMCollectionID', data=b'\xf2f\x98-\xc5B\x1eO\x8b\x94\x11\x04o\x88+]')
"PRIV:WM/WMContentID:N\x11]±S' B\x8d³Q\x16\x9b\x1f\x9f\x80"  PRIV(owner='WM/WMContentID', data=b"N\x11]\xb1S' B\x8d\xb3Q\x16\x9b\x1f\x9f\x80")
'TALB' (Album/Movie/Show title)                     'history of carnival'
'TBPM' (BPM (beats per minute))                     '89.414'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-calypso'
'TDRC' (Recording time)                             '1937'
'TENC' (Encoded by)                                 'ggs'
'TIT2' (Title/songname/content description)         'netty netty'
'TKEY' (Initial key)                                '11A'
'TOAL' (Original album/movie/show title)            'mbd 905 / mbd 905'
'TPE1' (Lead performer(s)/Soloist(s))               'the lion'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Matchbox Recordings'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['calypso', 'caribbean', 'all', 'trinidad']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.64 dB'
'TXXX:replaygain_track_peak'                        '0.517672'

========================== row from database ==========================
                                              'id'  675999
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/history of carnival/history of carnival - 15 - the lion - netty netty.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  161
                                           'genre'  loc-style-calypso
                                        'filesize'  3873565
                                           'mtime'  1620528315
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 15 loc style calypso
                                      'tag_artist'  the lion
                                     'tag_release'  history of carnival
                                       'tag_title'  netty netty
                                             'bpm'  89.414
                                    'search_title'  'netty':1
                                   'search_artist'  'lion':2 'the':1
                                  'search_release'  'carnival':3 'history':1 'of':2
                                     'search_rest'  'calypso':7 'country':4 'exotica':2 'jazz':1 'loc':5 'oldies':3 'style':6
                                    'search_combo'  'calypso':13 'carnival':6C 'country':10 'exotica':8 'history':4C 'jazz':7 'lion':3B 'loc':11 'netty':1A 'of':5C 'oldies':9 'style':12 'the':2B
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['calypso', 'caribbean', 'all', 'trinidad']
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528315.2983332  (2021-05-09 04:45:15)
                             'size'  3873565